The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 2014
Filed:
Apr. 03, 2012
Bohuslav Maśek, Kaznéjov, CZ;
Hana Jirková, Strakonice, CZ;
Ludmila Kuĉerová, Pize{grave over (n)}, CZ;
Andrea Rone{grave Over (S)}ová, Pize{grave over (n)}, CZ;
Stépàn Jeniĉek, Rotava, CZ;
Bohuslav Maśek, Kaznéjov, CZ;
Hana Jirková, Strakonice, CZ;
Ludmila Kuĉerová, Pize{grave over (n)}, CZ;
Andrea Rone{grave over (s)}ová, Pize{grave over (n)}, CZ;
Stépàn Jeniĉek, Rotava, CZ;
Zapadoceska Univerzita V Plzni, Plzen, CZ;
Abstract
According to the method of production of a steel sheet pressed part with locally modified properties, the steel sheet blank is first heated in a device for heating to the austenitic temperature of the material. Next, the steel sheet blank is converted in a tool for deep drawing by deformation into a final drawn part. Subsequently, the final drawn part is cooled inside the tool for deep drawing. Various locations of the final drawn part are cooled to various temperatures and/or at various rates during the cooling process. Thereafter, the drawn part is placed in an annealing device, where retained austenite stabilization occurs by diffusion-based carbon partitioning within the material from which the drawn part is made. After stabilization, the final drawn part is removed from the annealing device and air cooled to ambient temperature.